The SNOMED CT content by which an expression constraint is evaluated or a query is executed.
Notes
- Two distinct types of substrate are directly relevant to use of SNOMED CT:
- The substrate for an expression constraint that generates the membership of a subset or reference set.
- The substrate for a clinical analytics query, consisting of a collection of records either coded in or mapped to SNOMED CT.
Examples
- Substrates for subset generation include:
- A particular version of a specified SNOMED CT edition
- Members of a preexisting reference set.
- Substrates for analytics include:
- SNOMED CT encoded electronic health records from a particular institution or department.
- A disease registry database containing or mapped to SNOMED CT.
Related Links
- Analytics with SNOMED CT
- Decision Support with SNOMED CT
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